US5546151AExpiredUtility

Masking device for creating multiple image in photographs

Priority: Mar 25, 1994Filed: Mar 25, 1994Granted: Aug 13, 1996
Est. expiryMar 25, 2014(expired)· nominal 20-yr term from priority
G03B 2217/241G03B 11/00
64
PatentIndex Score
16
Cited by
12
References
3
Claims

Abstract

A masking apparatus universally adaptable to fit camera lenses for creating multiple exposure photographs including a masking device insertable within commercial filter holders mountable on a lens of a camera. The masking device having at least two apertures formed therein which are alignable with an exposure area of the lens of the camera. Aperture alignment is accomplished by sliding the masking device within the filter holder until the desired aperture is positioned in the desired location.

Claims

exact text as granted — not AI-modified
Having described the present invention, what is claimed is: 
     
       1. A masking apparatus universally attachable to a lens of a camera for creating multiple image photographs, the apparatus comprising: (a) a masking device for masking a portion of an exposure area of the camera lens which exposes light to film within the camera, the masking device having a first aperture and a second aperture formed therein, a first end and an opposing second end, an elongated first side and an opposing elongated second side, an elongated slot formed in one of the two opposing elongated sides of the masking device, the slot bracketed by a first stop proximate the first end and an opposing second stop proximate the second end and wherein the first stop and second stop coorperate with a means for mounting to align the first aperture and the second aperture with the first portion and the second portion respectively of the exposure area of the lens of the camera to enable double exposure photographs;   (b) means for mounting the masking device to the lens of the camera and wherein the masking device is slidable within the means for mounting to enable the first aperture to access a first portion of the exposure area of the camera lens and the second aperture to access a second portion of the exposure area of the cameras lens, the first aperture is defined as being within the parameters of the exposure area of the camera lens when a first exposure is made and the second aperture is defined as being within the parameters of the exposure area of the camera lens when a second exposure is made.   
     
     
       2. A masking apparatus universally attachable to a lens of a camera for creating multiple image photographs, the apparatus comprising: (a) a masking device for masking a portion of an exposure area of the camera lens which exposes light to film within the camera, the masking device having at least a first aperture and a second aperture formed therein, the first aperture defining a first portion of a circle and being essentially a crescent shape the masking device further including a first end and an opposing second end, an elongated first side and an opposing elongated second side, an elongated slot formed in one of the two opposing sides of the masking device, the slot bracketed by a first stop proximate the first end and an opposing second stop proximate the second end and wherein the first stop and second stop coorperate with a means for mounting to selectively align the first aperture and the second aperture with the exposure area of the lens of the camera to enable double exposure photographs;   (b) means for mounting the masking device to the lens of the camera and wherein the masking device is slidable within the means for mounting to enable the first aperture to access a first portion of the exposure area of the camera lens and the second aperture to access a second portion of the exposure area of the camera lens, the first aperture is defined as being within the parameters of the exposure area of the camera lens when a first exposure is made and the second aperture is defined as being within the parameters of the exposure area of the camera lens when a second exposure is made.   
     
     
       3. The masking apparatus of claim 2 wherein the masking device comprises: a second aperture defining a second portion of a circle and being essentially an oval shape.

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